7EPA | pdb_00007epa

Cryo-EM structure of inactive mGlu2 homodimer

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Type 1 solute binding protein-like	8078799	3000125	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Type 1 solute binding protein-like	8078799	3000125	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	7tm_3	e7epaB2	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: 7tm_3	ECOD (1.6)
B	ANF_receptor_2nd_1	e7epaB3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: ANF_receptor_2nd_1	ECOD (1.6)
B	NCD3G	e7epaB1	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: TNF receptor-like	F: NCD3G	ECOD (1.6)
A	7tm_3	e7epaA1	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: 7tm_3	ECOD (1.6)
A	ANF_receptor_2nd_1	e7epaA3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: ANF_receptor_2nd_1	ECOD (1.6)
A	NCD3G	e7epaA4	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: TNF receptor-like	F: NCD3G	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (utative)
A	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01094	Receptor family ligand binding region (ANF_receptor)	Receptor family ligand binding region	This family includes extracellular ligand binding domains of a wide range of receptors. This family also includes the bacterial amino acid binding proteins of known structure.	Domain
A, B	PF07562	Nine Cysteines Domain of family 3 GPCR (NCD3G)	Nine Cysteines Domain of family 3 GPCR	-	Family
A, B	PF00003	7 transmembrane sweet-taste receptor of 3 GCPR (7tm_3)	7 transmembrane sweet-taste receptor of 3 GCPR	This is a domain of seven transmembrane regions that forms the C-terminus of some subclass 3 G-coupled-protein receptors. It is often associated with a downstream cysteine-rich linker domain, NCD3G Pfam:PF07562, which is the human sweet-taste recepto ...	This is a domain of seven transmembrane regions that forms the C-terminus of some subclass 3 G-coupled-protein receptors. It is often associated with a downstream cysteine-rich linker domain, NCD3G Pfam:PF07562, which is the human sweet-taste receptor, and the N-terminal domain, ANF_receptor Pfam:PF01094. The seven TM regions assemble in such a way as to produce a docking pocket into which such molecules as cyclamate and lactisole have been found to bind and consequently confer the taste of sweetness [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Metabotropic glutamate receptor 2	molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity glutamate receptor activity scaffold protein binding protein binding binding channel regulator activity ion channel regulator activity calcium channel regulator activity molecular function regulator activity transporter regulator activity group II metabotropic glutamate receptor activity molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity glutamate receptor activity scaffold protein binding protein binding binding channel regulator activity ion channel regulator activity calcium channel regulator activity molecular function regulator activity transporter regulator activity group II metabotropic glutamate receptor activity G protein-coupled glutamate receptor activity adenylate cyclase inhibiting G protein-coupled glutamate receptor activity	regulation of localization nitrogen compound transport regulation of cellular process transport regulation of glutamate secretion localization secretion by cell regulation of secretion by cell regulation of amino acid transport glutamate secretion regulation of biological process organic anion transport carboxylic acid transport secretion regulation of localization nitrogen compound transport regulation of cellular process transport regulation of glutamate secretion localization secretion by cell regulation of secretion by cell regulation of amino acid transport glutamate secretion regulation of biological process organic anion transport carboxylic acid transport secretion regulation of transport biological regulation export from cell establishment of localization regulation of secretion organic acid transport amino acid transport amine transport acidic amino acid transport regulation of organic acid transport dicarboxylic acid transport cellular process regulation of amine transport trans-synaptic signaling regulation of signaling modulation of chemical synaptic transmission signaling cell-cell signaling presynaptic modulation of chemical synaptic transmission chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication monoamine transport regulation of catecholamine secretion organic hydroxy compound transport dopamine transport catecholamine transport signal release dopamine secretion catecholamine secretion regulation of dopamine secretion response to stimulus regulation of response to stimulus response to chemical regulation of response to drug response to xenobiotic stimulus cellular response to stimulus positive regulation of cell communication regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signal transduction positive regulation of biological process regulation of signal transduction intracellular signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction positive regulation of cellular process positive regulation of intracellular signal transduction positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction phosphatidylinositol 3-kinase/protein kinase B signal transduction positive regulation of signaling regulation of molecular function regulation of adenylate cyclase activity regulation of catalytic activity negative regulation of molecular function negative regulation of catalytic activity negative regulation of adenylate cyclase activity cellular response to stress response to stress intracellular amino acid homeostasis cellular homeostasis intracellular glutamate homeostasis chemical homeostasis homeostatic process intracellular chemical homeostasis biosynthetic process metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process cell surface receptor signaling pathway glutamate receptor signaling pathway G protein-coupled glutamate receptor signaling pathway G protein-coupled receptor signaling pathway negative regulation of signaling negative regulation of biological process negative regulation of synaptic transmission negative regulation of cell communication negative regulation of cellular process regulation of biological quality regulation of synaptic plasticity long-term synaptic depression behavior adult behavior multicellular organismal process response to nicotine behavioral response to nicotine synaptic transmission, glutamatergic regulation of synaptic transmission, glutamatergic response to oxygen-containing compound response to nitrogen compound response to cocaine response to alkaloid	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane glial cell projection cell projection plasma membrane bounded cell projection astrocyte projection cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane glial cell projection cell projection plasma membrane bounded cell projection astrocyte projection presynapse presynaptic membrane somatodendritic compartment dendrite dendritic tree neuron projection glutamatergic synapse axon

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR017978	GPCR family 3, C-terminal	Domain
A, B	IPR017979	GPCR, family 3, conserved site	Conserved Site
A, B	IPR001458	GPCR, family 3, metabotropic glutamate receptor 2	Family
A, B	IPR000337	GPCR, family 3	Family
A, B	IPR038550	GPCR, family 3, nine cysteines domain superfamily	Homologous Superfamily
A, B	IPR011500	GPCR, family 3, nine cysteines domain	Domain
A, B	IPR028082	Periplasmic binding protein-like I	Homologous Superfamily
A, B	IPR000162	GPCR, family 3, metabotropic glutamate receptor	Family
A, B	IPR001828	Receptor, ligand binding region	Domain
A, B	IPR050726	Metabotropic Glutamate Receptor	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q14416	schizophrenia temporal lobe epilepsy amphetamine abuse Addicted to cocaine drug psychosis glioblastoma malignant ependymoma pilocytic astrocytoma atypical teratoid rhabdoid tumor malignant glioma primitive neuroectodermal tumor

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Transmembrane	Alpha-helical polytopic	Rhodopsin-like receptors and pumps	GPCR Metabotropic glutamate receptor (C) family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class C	Metabotropic Glutamate Receptor 2 (mGlu2) homodimer

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.